Finding the Fourth Proportional to 122,139.70, 183,209.55 and 122,139.70
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Solution
The fourth proportional to 122,139.70, 183,209.55 and 122,139.70 is: 183,209.55
Step by Step Solution
- Step 1: Write the proportion equation
122,139.70 : 183,209.55 = 122,139.70 : x - Step 2: Convert to fraction form
122,139.70/183,209.55 = 122,139.70/x - Step 3: Cross multiply
122,139.70x = 183,209.55 × 122,139.70 - Step 4: Simplify right side
122,139.70x = 22,377,159,474.14 - Step 5: Solve for x
x = 22,377,159,474.14/122,139.70 - Step 6: Final answer
x = 183,209.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.